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MODERN PUBLICATION-GROUP 15 ELEMENTS-EXERCISE
- In modern process phosphorus is manufactured by:
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- The basicity of orthophosphoric acid is:
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- Cane sugar reacts with concentrated HNO3 to give:
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- Complex fertilizer is that supplies to the soil:
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- Liquid ammonia bottles be opened after cooling them in ice for sometim...
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- The lightning bolts in atmosphere cause the formation of:
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- The most reactive allotropic form of phosphorus is:
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- Which hydride possesses the maximum complex forming nature ?
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- The formula of zinc phosphite is:
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- NH3 molecule can enter into complex formation through:
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- Calcium carbide when heated with nitrogen forms:
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- Which property of white phosphorus is common to red P ?
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- Which hydride Is most stable ?
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- Which is a poison ?
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- NH4Cl is used to clean metal surfaces because:
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- In smoke screens calcium phosphide is used, because it:
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- Ammonia on heating with carbon dioxide under pressure gives:
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- Dilute HNO3 reacts with limestone to yield:
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- CaN pellets are coated with calcium silicate because:
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- Basic oxide is:
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